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Precision Glass for Industrial Instruments

We manufacture durable, optically clear glass components for industrial instruments—from sight glasses and gauge covers to sensor lenses. Engineered to withstand harsh conditions, ensure accurate readings, and meet strict safety standards.
  • Production-grade products
  • ISO 9001:2015 certified
  • 24/7 engineering support
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BO-GLASS: Precision Glass Solutions for Industrial Instruments

BO-GLASS delivers certified, high-performance glass components for industrial applications. Our chemically strengthened glass withstands 5J+ impacts and 200°C thermal shock, meeting international standards. We accelerate your project from rapid prototyping to reliable mass production.

Why manufacture
Industrial Instruments
with BO-GLASS?

b

ISO-Certified Quality

ISO 9001:2015 certified manufacturing ensuring top-tier consistency and control.
h

End-to-End Service

Combines molding press glass and precision cold working (CNC) for complete solutions.
l

Expert Engineering

20+ years of Industrial Instruments experience to optimize your designs.
c

Scalable Production

Handles any volume—from single prototypes to full batch production for molded lenses.
o

Rapid Delivery

Leverages robust facilities and networks for fast turnaround, regardless of complexity.

Instant Quoting

Our engineers provide quick, accurate project quotes upon design review.

What kind of Industrial Instruments glass parts can we make?

We manufacture certified industrial glass components including sight glasses, optical lenses, indicator covers, and measurement windows. Our durable products withstand harsh conditions, ensuring reliable performance and accurate readings across various applications.

Observation Windows & Sight Glasses

These glasses must withstand pressure, temperature, and provide clear visibility.

Pressure Vessel Sight Glasses: Used in reactors, boilers, and steam pipelines to monitor internal processes and liquid levels.

Industrial Oven & Furnace Viewports: Used in heat treatment, sintering, and drying production lines, capable of withstanding sustained high temperatures.

Chemical Equipment Observation Windows: Used in reaction vessels and pipelines to monitor fluids and chemical reactions, requiring corrosion resistance.

Laser Cutter Protective Windows: Used to observe the cutting head status while protecting against laser scattering and splatter.

Optical & Sensing Components

These glasses require high optical homogeneity, transmittance, and specific spectral properties.

Industrial Camera & Sensor Lenses: Used for machine vision, dimensional inspection, barcode reading, and positioning guidance.

Laser Optical Components: Including focusing lenses, reflector mirrors, and protective covers for laser marking, welding, and cutting equipment.

Thermal Imager Windows: Used for monitoring equipment temperature distribution, requiring high transmittance in the infrared spectrum.

Scanner & Copier Platen Glass: Requires high hardness and scratch resistance to protect internal precision optical components.

Lighting & Indication Components

These glasses are used to safely and efficiently transmit or display light sources.

Equipment Status Indicator Lenses/Covers: Used in control cabinets, machine tools, and automated equipment to display operational status, alarms, and faults.

Machine Work Area Lighting Covers: Provide internal illumination for CNC machining centers, measuring instruments, etc., requiring oil resistance and shatterproof properties.

Fiber Optic Terminals & Couplers: Used in industrial communication and sensing systems.

Thermal Insulation & Protection Components

These glasses primarily provide physical isolation to protect both equipment and personnel.

High-Temperature Zone Insulation Windows: Used on welding stations or high-temperature furnaces to protect operators from radiant heat.

Equipment Protection Covers/Guards: Prevent dust, liquids, and debris from entering sensitive parts of equipment while allowing for observation.

X-ray Machine & NDT Equipment Windows: Require high transmittance for specific radiation while ensuring safety.

Industrial manufacturing capabilities

All our manufacturing processes offer a wide selection of materials. Below is a list of some commonly used materials in industrial projects.

Precision Glass Molding Services

Precision molded optical lenses, prisms and domes for medium to high-volume production.

See our Precision Glass Molding Services

Glass Coatings for Enhanced Performance

Advanced glass coatings for enhanced performance & custom functionality

See our Glass Coatings for Enhanced Performance

Custom Glass Cutting Services

Precision CNC waterjet & laser glass cutting for complex designs and various materials.

See our Custom Glass Cutting Services

Surface Lapping & Polishing

YO-GLASS delivers micron to sub-nanometer surface finishes through precision grinding and polishing for optics and semiconductors.

See our Surface Lapping & Polishing

Industrial glass manufacturing materials

All our manufacturing processes offer a wide selection of materials. Below is a list of some commonly used materials in industrial projects.

Borosilicate glass

Float Glass (Soda-lime)

Composition：SiO₂, Na₂O, CaO

Appearance :Clear with slight green tint

Visible Light Transmission:~89%

Density (g/cm3)):~2.5

Knoop Hardness： ~5850 MPa

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features：Most common, cost-effective

Applications：Windows, mirrors, furniture

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Borosilicate glass

Low-iron Glass

Composition：SiO₂, very low Fe₂O₃

Appearance :Water-white, high clarity

Visible Light Transmission:~91% - 99%

Density (g/cm3)):~2.5

Knoop Hardness： ~5850 MPa

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features：Superior clarity, minimal color distortion

Applications：Display glass, aquariums, high-end furniture

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Borosilicate glass

Borosilicate3.3

Composition：SiO₂, B₂O₃

Appearance :Clear, colorless

Visible Light Transmission:~90% - 92%

Density (g/cm3)):~2.23

Knoop Hardness： ~4800 MPa

*CTE (x10⁻⁷/°C)*：~33

Softening Point (°C)）：~821

Max. Working Temp. (°C)：~450 (short-term 500)

Features： Excellent thermal shock resistance, high chemical durability

Applications： Labware, sight glasses, high-temperature lighting

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Borosilicate glass

Aluminosilicate Glass

Composition：SiO₂, Al₂O₃, MgO, CaO

Appearance :Clear, colorless

Visible Light Transmission:~90%

Density (g/cm3)):~2.64

Knoop Hardness： ~6100 MPa

*CTE (x10⁻⁷/°C)*：~42 - 52

Softening Point (°C)）：~975

Max. Working Temp. (°C)：~600 - 800

Features：High mechanical strength, superior temperature & chemical resistance

Applications：Touchscreens, cover glass, aerospace

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Borosilicate glass

Tineted glass

Composition：Soda-lime base with colorants (Se, Co, Fe)

Appearance :Bronze, Grey, Green, etc

Visible Light Transmission:Varies (e.g., 20% - 70%)

Density (g/cm3)):~2.5

Knoop Hardness：~5850 MPa

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features：Solar energy absorption, reduced glare, privacy

Applications： Facades, automotive windows, sun protection

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Borosilicate glass

Anti-glare Glass

Composition：Soda-lime or low-iron with etched surface

Appearance :Matte, diffuse surface

Visible Light Transmission:Varies (e.g., 90% - 98% of base glass)

Density (g/cm3)):~2.5

Knoop Hardness：~5850 MPa

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features：Scatters light to reduce reflections, improves readability

Applications：Picture framing, display cases, instrument covers

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Borosilicate glass

Laminated glass

Composition：Glass + PVB/IONPLAST interlayer

Appearance :Clear, Tinted, or with interlayer color

Visible Light Transmission:Depends on glass panes used

Density (g/cm3)):~2.5

Safety Rating：Safety Glass: holds together when broken

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features：Security, sound insulation, UV control

Applications：Windshields, overhead glazing, security windows

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Borosilicate glass

Patterned glass

Composition：Soda-lime, rolled with pattern

Appearance :Textured/obscured surface, various patterns

Visible Light Transmission:Varies with pattern (5% - 85%)

Density (g/cm3)):~2.5

Safety Rating：Breaks into sharp pieces (like float glass)

*CTE (x10⁻⁷/°C)*：~85 - 90

Softening Point (°C)）：~600

Max. Working Temp. (°C)：~200 - 250

Features： Decorative, provides privacy & light diffusion

Applications：Partitions, bathroom windows, decorative doors

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Borosilicate glass

Quartz glass

Composition：>99.9% SiO₂

Appearance :Clear, colorless, high purity

Visible Light Transmission:>93% (up to UV range)

Density (g/cm3)):~2.2

Safety Rating：Breaks into sharp pieces

*CTE (x10⁻⁷/°C)*：~5.5

Softening Point (°C)）：~1683

Max. Working Temp. (°C)：~1100

Features： Ultra-high temp resistance, superior UV transmission, high purity

Applications：Optics, semiconductor, UV lighting, furnace viewports

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Our factory and our partner factories

BO-GLASS coordinates our core facility with a dedicated network of local specialists to deliver custom glass components. You benefit from our collective expertise while we manage all communication, quality control, and logistics for a seamless experience.

FAQ: Precision Glass Components for Industrial Instruments

Why should we choose glass over polycarbonate or other plastics for our instrument cover or sight glass?
Glass offers superior advantages for industrial environments:

Scratch Resistance: Maintains optical clarity and does not haze from abrasion.

Chemical Inertness: Resists corrosion from oils, solvents, and cleaning agents.

Thermal Stability: Withstands high operating temperatures without warping or deforming.

Durability: Provides a hard, long-lasting surface that maintains its properties over time.

How heat and impact resistant are your glass components?
Our standard borosilicate glass offers excellent thermal shock resistance. For demanding applications, we provide chemically strengthened glass that can withstand impacts exceeding 5J and thermal shocks up to 200°C, meeting rigorous international standards.
Can you manufacture a part from our technical drawing or CAD file?
Absolutely. Our core expertise is translating your designs into high-performance components. We work with your technical drawings, CAD files, or samples to ensure perfect fit, form, and function for your instrument.
What is your lead time for prototypes and mass production?
We specialize in rapid prototyping to accelerate your R&D cycle, typically within 2-4 weeks. For mass production, we provide a reliable schedule and leverage our robust supply chain to ensure on-time delivery for your project.
What is your Minimum Order Quantity (MOQ)?
We offer flexible production to support both low-volume custom projects and high-volume orders. Contact us to discuss your specific needs, and we will find a solution that works for you.
How do you ensure optical clarity and dimensional accuracy?
We guarantee a dimensional accuracy of ±0.2mm and use high-purity, optically consistent glass grades. Our manufacturing and quality control processes are designed to ensure every component mee

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